Shut-off nozzle for firemen&#39;s hose.



`No. 680,0I6. Patented Aug. 6, |90I. J. M. BAKE-R.

SHUT-UFF NOZZLE FUR FIREMENS'HOSE.

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UNITED STATES Plym-nvr4 OFFICE.

JAMES M. BAKER, OF PROVIDENCE, RHODE ISLAND.

SHUT-OFF NOZZLE FOIR FlRElVIENS HOSE.

SPECIFICATION formingpart of Letters Patent No. 680,016, dated August 6, 1901.

Application led February 26, 1901. Serial No. 48,993. (No model.)

To @ZZ whom it may concern:

Be it known thatI, JAMES M. BAKER, a citizen of the United States, residing at Providence, in the State of Rhode Island, have invented a ,new and useful Improvement in Shut-Off Nozzles for Firemens I-Iose, of which the following is a specification.

Myinvention relates to an improved shutoff nozzle,which is easily operated throughout the Whole extent of its movement; and it consists in the improved combination and arrangement of parts, as hereinafter set forth and claimed.

In the accompanying drawings, Figure l represents a side View of a shut-off nozzle embodying my improvement. Fig. 2 represents a longitudinal section taken in the line 2 2 of Fig. 1, showing the opened condition of the shut-oifvalve. Fig. 3 represents a partial section showing the shut-o valve in its closed condition. Fig. 4 represents a transverse section takenl in the line et 4 of Fig. 2, showing a plan View of the valve-seat.

In the draWings,A represents the play-pipe, to which the shut-off nozzle B is secured by means of the screw-thread c. The annular valve-seat o. is formedV concentric with the circular Wall of the shell b and connected thereto by means of the connecting-bars k 7c, the said shell being preferably formed with a spherical enlargement d and With a cylindrical portion d', provided at its upper end with the opposite slots e e, Which are open at their outer ends, adapted to receive the studs f f, formed upon the valve-tube g, and outside the cylindrical portion d of the shell b and preferably with an intervening space d2 is placed the outer tube 7i, which is firmly secured to the shell b by means of the screwthread t', the upper end of the said outer tube h being provided with the internal annular shoulder h', and Within the outer tube 71l is placed the nozzle-tubej, provided with the annular shoulder h2 and the packing-ring h3, by means of which the nozzle-tube j is pre- Vented from being forced outward from the outer tube h, and the loose joint j between the tubes h and j is made Water-tight. The nozzle-tubej` is held loosely Within the outer tube h, the inner end of the said tube j resting against the outer end of the cylindrical portion d of the shell b, and the said nozzletube j is provided with the internal screwthread j2, Which engages with the external screw-thread ,7'3 of the valve-tube g, and also provided with the fluted outer surface m', by means of Which the said tube j may be c011- veniently rotated by hand to cause the opening or closing of the valve oi, the said valve being shown in its opened condition in Fig. 2 and in its closed condition in Fig. 3, the valve-tube g being held from rotation With the rotation of the nozzle-tube j by means of the studsff, which are adapted to move back and forth in the slots e e. The nozzle-tube j is provided at its outer end with the removable tip o and with the bushings o o2 for throwing streams of different sizes. The valve-tube g' is provided with the packingring g', and on account of its nearly-balanced condition is easily operated for opening and closing the valve by means of the screwthreadsj2 and js.

I claim as my inventionl. In a shut-off nozzle, the combination of the revoluble nozzle -tube, with the sliding valve-tube actuated by the revolution of the nozzle tube, and the closing seat for the valve-tube, substantially as described.

2. In a shut-off nozzle, the combination of the shell provided with the spherical enlargement the cylindrical portion provided with a guiding-slot open at its outer end and the centrally-arranged valve-seat, With the valvetube provided with a stud held in the slot of the shell, and serving to prevent the rotation of the valve-tube, substantially as described.

3. In a shut-o nozzle, the combination of the shell provided With the cylindrical portion having a guiding-slot open at its end and the centrally-arranged valve-seat, With the valve-tube provided with a stud held in the guiding-slot of the shell, and With the external screw-thread formed upon the outer end of the valve-tube beyond the end of the slot in the shell, the revoluble nozzle-tube provided With the internal screw-thread engaging with the external screw-thread of the valve-tube, and means for holding the said valve-tube and the nozzle-tube in proper Working relation with each other, substantially as described.

JAMES M. BAKER. Witnesses:

SOCRATES ScHoLnrnLD, HARRY J. GARGEAU.

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